After radiofrequency ablation surgery, there may be a short PR interval and a feeling of arrhythmia, which will usually heal by itself and does not need special treatment. Radiofrequency ablation is a minimally invasive procedure, in which an electrode catheter is applied to release radiofrequency current in the diseased portion of the heart chambers to cauterize and necrolyze the myocardium of the abnormal conduction pathway, so as to achieve the purpose of treating cardiac arrhythmia. After surgery, some patients may feel arrhythmia, which may also be related to the heart function has not been fully recovered, pay attention to the activities should be cyclical and gradual, gradually increase the amount of exercise, with a light diet, small meals, balanced nutrition, to avoid too much anxiety and tension, which can also trigger the heart rate increase. If the symptoms continue to be unrelieved, it is recommended to go to the hospital in a timely manner, the arrhythmia may occur again, and if necessary, a second operation should be carried out.